<!doctype html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
</head>
<body>
<script type="text/javascript">
	function bigger(x,y){
		var num=(+x+'>' +y+ '')? 'x':'y';
		return num;
	}
	var i=bigger(7,4);
	document.write(i);
  



</script>

</body>
</html>